How did J.R.R. Tolkien come up with big hairy feet for his hobbits?

Tolkien drew inspiration from the descriptions of "Satyrs" in Greek mythology, who were portrayed with hairy legs and hooves. Additionally, he was influenced by his own experiences walking barefoot on the grass in the English countryside, which he found to be a delightful sensation that he wanted to incorporate into the hobbits' characterization.